FATAL ERROR IN NS3

please i want to know y the following error is showing in my program after it was successfully built.
Waf: Leaving directory `/home/samera/ns-allinone-3.19/ns-3.19/build'
'build' finished successfully (3.994s)
msg="Log component "RreqTable" has already been registered once.", file=../src/core/model/log.cc, line=99
terminate called without an active exception
Command ['/home/samera/ns-allinone-3.19/ns-3.19/build/scratch/dsdv-manet'] terminated with signal SIGIOT. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").